The pupils here_____ all kinds of exercises every day in the past few weeks.
#104326
A
keptbusydoing
B
keepondoing
C
havekeptbusydoing
D
havebeenkeptbusydoing
推荐题目
.Mr. Richard hasn’t got any time to play golf these days,because he is ______in the research of bird language.
#104550
A
devoted
B
concentrated
C
buried
D
spared
-Why does the Lake smell terrible? -Because large quantities of water .
#104968
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
--- How come your father can read books in German?--- Well, he on a project with some German engineers for 3 years when he was young.
#100413
A
worked
B
was working
C
had worked
D
would work
-Why does the Lake smell terrible?-Because large quantities of water__________.
#104945
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
The church tower which_________will be open to tourists soon. The work is almost finished.
#103744
A
has restored
B
has been restored
C
is restoring
D
is being restored